package main

import "fmt"

type planets []string

func (p planets) Terraform() {
	for i := range p {
		p[i] = "New " + p[i]
	}
}

func main() {

	nums := []string{"Mars", "Uranus", "Neptune"}
	p := planets(nums)
	p.Terraform()

	fmt.Println(p)
}
